package com.Service;

import com.pojo.GroupActivityVO;
import com.pojo.GroupJoinVO;

import java.util.List;

public interface GroupService {
    List<GroupJoinVO> getGroupsByUser(Long userId);
    GroupActivityVO getGroupDetail(Long id);

    void joinGroup(Long activityId, Long userId);

    void initiateGroup(Long activityId, Long id);
}
